Tap to Color: Painting Book is a coloring game that features drawing lessons and coloring fun. From level to level, the player receives pictures of colored drawings. Their goals are to prompt the game to draw the outline of the object or objects and then paint inside the lines with colors that match each picture perfectly. When they perform well, they receive three gold stars.
The game displays a ring-style art book. In the upper-center area below the level number, it displays a descriptive statement about an object or objects and a related picture.
The player uses virtual paint markers to complete their task. After they finish a black outline, they receive three fill colors on a palette below the picture. They're prompted to select a color and paint an area marked with flashing diagonal fill lines. They must repeat this process multiple times with different colors and areas.
Tap to Color: Painting Book updates the screen with a green check mark button while the player paints inside the lines. The player selects this button after they paint an area with one color completely. After they repeat these steps multiple times, they select this button one last time to see how many stars they've won for their work and move on to the next level.